Cockroach: Morphology & Reproduction (55x90cm)

A “Cockroach: Morphology & Reproduction” (55×90 cm) educational chart illustrates the external body structure and reproductive systems of both male and female cockroaches, using labeled diagrams and concise notes for classroom and laboratory learning.​

Morphology Features

Size and Material: The chart is 55×90 cm, printed in color and typically laminated for repeated educational use.​

Body Structure:

Shows the dorsal view of the male and ventral view of the female cockroach, with clear divisions of head, thorax, and abdomen.​

Highlights characteristic features like compound eyes, long antennae, mouthparts (labrum, mandibles, maxillae, labium, hypopharynx), and wing types (tegmina for forewings and membranous hindwings).​

Points out segmented legs (coxa, trochanter, femur, tibia, tarsus) and external appendages (cerci, styles) for locomotion and sensory functions.​

Includes external genitalia and further notes on sex-specific anatomical details.

Reproduction Features

Male Reproductive System:

Labeled diagrams cover testes, vas deferens, seminal vesicles, mushroom gland, conglobate (phallic) gland, and male gonapophyses.​

Annotation focuses on sperm production, storage, accessory glands, and the transfer of spermatophores during mating.​

Female Reproductive System:

Shows ovaries (multiple ovarioles), oviducts, vagina, genital pouch (gynatrium), oothecal chamber for egg-case formation, collaterial glands, and spermathecae (storage of sperm).​

Explains egg-laying—females produce oothecae that contain multiple eggs—the external genitalia (ovipositor) helps properly place eggs during reproduction.​

Sexual Dimorphism:

Notes differences such as male styles (present in the 9th abdominal segment) and female boat-shaped 7th sternite for egg-laying.​

This chart provides a comprehensive visual summary of cockroach anatomy and reproduction, allowing students to easily identify body regions, understand mating and egg-laying, and compare male–female differences in insect systems.